Struct ResultPresentation 

pub struct ResultPresentation {
    pub columns: Vec<ColumnInfo>,
    pub distinct: bool,
    pub order: Vec<GlobalOrder>,
    pub final_order_key_indexes: Vec<usize>,
    pub offset: u64,
    pub limit: Option<u64>,
}

Final shaping shared by row and aggregate assembly.

Fields

columns: Vec<ColumnInfo>

distinct: bool

order: Vec<GlobalOrder>

final_order_key_indexes: Vec<usize>

Final-row column positions used by aggregate modes. Row mode instead receives precomputed keys so ORDER BY expressions need not be decoded.

offset: u64

limit: Option<u64>

Implementations

impl ResultPresentation

pub fn from_projection( projection: &Projection, input_schema: &[ColumnMetadata], distinct: bool, order: Vec<GlobalOrder>, final_order_key_indexes: Vec<usize>, offset: u64, limit: Option<u64>, ) -> Result<Self, DistributedReadAssemblyError>

Construct output metadata with the existing local projection kernel.

Trait Implementations

impl Clone for ResultPresentation

fn clone(&self) -> ResultPresentation

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ResultPresentation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ResultPresentation

impl PartialEq for ResultPresentation

fn eq(&self, other: &ResultPresentation) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ResultPresentation